For production web servers, most people assume scaling means needing faster (and more expensive) hardware. Before spending more money on servers, first make sure your web server process is using the m…

WakaTime’s infra is split across DigitalOcean and AWS. We use DigitalOcean Droplets for compute resources, AWS S3 to store code stats, and DigitalOcean Spaces for backups. You can find more info on th…

Redis is an in-memory database with very high write and read speed, and a limitation that data sets can’t be larger than available RAM. It’s like memcached but supports data structures instead of just…

SSL is CPU Intensive. If you haven't already enabled SSL session caching, do that NOW. But what if you have many unique requests and your load balancer is maxing out it's CPU? That was the case with W…